from Physics.Units.PhysicalQuantities import PhysicalUnit as PU 
from Physics.Units.PhysicalQuantities import PhysicalQuantity as PQ
from Physics.Units.PhysicalQuantities import _addUnit, _unit_table

pi = _unit_table['pi']

_addUnit('G','1e-4*T','Gauss')

Tesla = _unit_table['T']
Gauss = _unit_table['G']

tesla = PQ('1T')
gauss = PQ('1G')

_addUnit('Oe','1e3/(4*pi)*A/m','Oersted')

Oe = _unit_table['Oe']
oe = PQ(1,'Oe')